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Headphone speaker stops working during repair: explanation?

post #1 of 3
12/1/10 at 11:07am
Thread Starter 
I was repairing the headphone of a friend of mine which started having output problems with the left speaker (solder connection coming loose). He tried to look at it himself some months ago and in the process removed the cable. I decided I would fix the headphone with a new cable.

Now, I'm not very experienced in this sort of stuff but I do know which connections to make and I can solder. I first tested the headphones by touching the new wire to the speaker and it worked. However, once I desoldered the solder on the left speaker it stopped working. Whatever I do I can't get it to work.

Is there any chance of fixing this or did I destroy one of the headphone speakers?  
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post #2 of 3
12/1/10 at 5:29pm

The wire that comes from the voice coil to the terminal that you solder

on to is very fine and it may have come loose or broken while you

were changing the wires. Check and see if you can see the fine

wire that comes from the voice coil.

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post #3 of 3
12/1/10 at 7:06pm
It is also possible that you overheated the voicecoil and melted the insulation. Did you heatsink the wire to the voicecoil before you soldered it?

Also, do you have a DMM handy? Check for continuity across the driver.
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